Books Bernd Heinrich Books by Bernd Heinrich Bernd Heinrich has written books about: Nonfiction Science & Health Facebook Twitter Flipboard Email NPR stories about Bernd Heinrich Robert Krulwich/NPR Krulwich Wonders... Are Butterflies Two Different Animals in One? The Death And Resurrection Theory August 1, 2012 Moths and butterflies radically change shape as they grow, from little wormy caterpillar critters to airborne beauties. Why are they born this way? Could they actually be separate organisms? Ayodha Ouditt/NPR Opinion Krulwich Wonders... Thinking Too Much About Chalk July 12, 2012 When a school teacher writes her name on a blackboard on the first day of class, what she's really doing is crushing the skeletons of terribly ancient earthlings into a form that spells out the name "Mrs. Guttenheimer." iStockphoto.com Opinion Krulwich Wonders... Showing Vultures A Little Love July 3, 2012 Vultures are generally not admired, but maybe they should be: All over the world, these birds do the hard work of gobbling up dead animals and recycling that flesh into the Earth. And nowadays, nature's prize janitors are seriously down on their luck.